Bottle-cap



L. M. ROSENTHAL.

BOTTLE CAP. AIRPLICATION FILED APR. 4.191s.

1,328,455, Patented Jan. 20, 1920.

. INVENTOR- A TTORNEY clogging in the chutes of the automatic ma- IUNITED STATES PATENT OFFICE.

LEVI M. ROSENTHAL, OF NEW YORK, N. Y., ASSIGNOR TO'SAMUEL ROSENETHAL, OFNEW YORK, N. Y.

BoT'rLE-cAP.

which the following is a true and complete specification. r

The object of this invention is to improve upon bottle caps of the kindshown in U. S; Patent No. 1,139,792 dated May 18, 1915, so

that they can be fed and applied to the bottles more efiiciently andwithout danger of chines largely in use.

WVhile caps made according to said U. S. Patent No. 1,139,792 have beenfound eflicientand satisfactory, it has sometimes oc curred that becauseof the fact that these caps have a boss or rise connected to an annularportion, and having an axis substantially perpendicular to the packingdisk and hence extending in a vertical line when the cap is on thebottle, that when the caps are fed in an automatic machine, that theywabble or tilt upon this rise or boss, whereby the Y crimped edge of onecap catchesunder anto the bottle, and before the capping operation, i

Fig. 5 shows the structure of Fig. 4 after the capping operation,

Fig. 6 is a top view of the cap as applied on the bottle, the shown, a v

Fig. 7 is a central vertical section of an-' other embodiment of myinvention. The cap 1 has the customary crimped side flanges 2, which fitunder the edge 3 of the bottle 4 and hold the cap in position in thecenter thereof. The cap is provided with a boss or rise 5 exactly as inthe said U. S. Patent No. 1,139,792. The annular portion of the cap,instead of having substantially crimped edges not being ISpeciflcation'of Letters Patent. P t t d J 20, 1920 Application filedApril 4, 1916. Serial No. 88,771. I

- straight line elements, or slightly curved-elements as shown in thesaid former patent,

consists of a raised portion 6 of substantially the same height as theboss 5,.and an intermediate portion 7. Because of this shape when thecaps are fed in the machine, in a reversed position, they have a base ofsubstantially the same width as the cap itself and they do not wabble ortilt so as to .catch one upon the other.

As seen from Fig. 5, the rise 6 bein narrower than the walls of thebottle'et, the width of the rise 6 being about 3/64 of an 1I1Cl1 in acap'of about one. inch diameter, the boss or'rise 6 is drawn in orshaped upon the glass of the bottle in the manner shown in Fig. 5 sothat only a slight crease or depression 8 remains which does not mar theappearance of the cap. As the boss or rise is relatively stifi'er andless bendable than the annular portion, the boss substantially retainsitsformer shape and relative position, while the annular portion is bentto conform to the shape of the adjacent part of the neck of thebottle,'by the capping operation.

The cap is so designed that as in U. S. Patent No. "1,139,792 when theboss 5 is pushed in, the annular portion 7 is Well driven into the neckof the bottle, and the cork or stretchable lining 9 is stretched andpressedagainst the interior surface of the ,walls of the bottles.

It must be understood that the drawin s are not to scale, asotherwise'the detafis would be too small to be clearly perceptible.

In Fig. 7 I have shown another embodiment of my invention in which therise 5 of the cap is connected to the crimped side walls 2 by an annularportion 10, which is bent in so that the top of the boss 5 issubstantially at the same height as the top of the crimped side walls 2,in this manner the cap is given a broad and secure base and is preventedfrom wabbling.

I have described two embodiments of my invention, but it is clear thatchanges might be made in the details thereof, without departing from itsspirit as set forth in the following claims.

"The embodiment shown in Fig. 7 assumes the shape shown in' U. S. PatentNo. 1,139,792, when it is put on the 'bottle by the ordinary machine,and before the sealing plunger operates.

In the ordinary and well-known bottling machine which is in general useand is so well-known as to require no description thereof, a cap isapplied from a chute placed upon a bottle, and the crimped side walls ofthe cap are secured tothe bottle, by bending the crimps under the beadof the bottle, as is shown in Fig. 5 for example.

The caps made according to U. S. Patent #1139792 have been applied inthis manner by the ordinary machine, as is well-known in the art.

The cap having thus been secured to the bottle, the cap is then forcedinto the bottle by a plunger which exerts a sui'liciently powerfulpressure so that the sealing is completed. I

As before mentioned, when a cap made according to this invention isapplied to the bottle by this well-known machine, the bending in of theside walls causes the annulus to bend upwardly, so that the top of theboss raised and the cap of Figs. 6 and 7 assume the configuration shownand described in U. S. Patent #1139792.

I claim: a

l. A bottle cap provided with an inner packing disk and having side.walls, a central boss having an axis erpendicular to said packing disk.and an intermediate annular portion connecting the said side walls and.the said boss. the said intermediate annular portion being wider thanthe walls of th neck of the bottle to which the cap n is to be applied,the top of the said boss being at substantially the same level as thetop of the said side 'walls, the said intermediate annular portionhaving a shape out of conformity with the shape of the said packingdisk, the said intermediate annular portion being substantiallyuniformly bendable. said intermediate annular portion being capable ofbeing uniformly bent so as to raise said boss when the said side wallsare fastened to the neck of the bottle, so that the top of the said bossis then raised with respect to the top-of the said side Walls.

2. A bottle cap provided with an inner packing disk and having sidewalls, a central boss having an axis perpendicular to said packing disk,and an intermediate annular portion of uniform curvature connecting thesaid side walls and the said boss, the said intermediate annular portionbeing wider than the walls of the neck of the bottle to which the cap isto be applied, the top of the said boss being at substantially the samelevel, as the top of the said side walls, the said intermediate annularportion having a shape out of conformity with the shape of the saidpacking disk, the said intermediate annular portion being substantiallyuniformly ibendable, said intermediate annular portion being capable ofbeing uniformly bent when the said side Walls are fastened to the neckof the bottle, so that the top of the said boss is then raised withrespect to the top of the said side Walls.-

3. A cap having a flat disk and comprising side walls, a centralupstanding boss and an intermediate portion, said side walls beingcrimped and having a top at substantially the same level as the top ofthe said boss, the said intermediate portion being substantiallyparallel to the said packing disk, the said intermediate portion and thetop of the said side Walls being out of conformity with the shape of thetop of the bottle.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two subscribing Witnesses.

LEVI M. ROSENTHAL. Witnesses: p

H. STUART, G. LOWE.

